Ricoh D127 Service Manual page 407

045 P.P.: Development
046 P.P.: Charge
047 P Sensor
048 Anti-static LED
049 Polygon Motor
051 LD
052 Duplex Motor CW
053 Duplex Motor CCW
055 Bypass Feed Clutch
163 Bank1 Motor
164 Bank2 Motor
169 Bank1 Clutch
170 Bank2 Clutch
202 Scanner Lamp: Color 600
203 Scanner Lamp: Color 1200
204 Scanner Lamp: Bk
When checking Fan Motor High (005) or Fan Motor Low (006) note the following:

These motors may not respond when the fusing temperature is high.

Selecting "ON" checks that one of these motors normally operates. Selecting "OFF" turns off
the motor that you have started by selecting "ON." However, this does not guarantee that the
motor normally stops during normal operation.
SM Appendix 3-151
System Service Mode
D127/D128